Application of a screening method for fentanyl and its analogues using UHPLC-QTOF-MS with data-independent acquisition (DIA) in MS(E) mode and retrospective analysis of authentic forensic blood samples.

Application of a screening method for fentanyl and its analogues using UHPLC-QTOF-MS with data-independent acquisition (DIA) in MS(E) mode and retrospective analysis of authentic forensic blood samples.